2049955769 has 2 divisors, whose sum is σ = 2049955770. Its totient is φ = 2049955768.

The previous prime is 2049955757. The next prime is 2049955801. The reversal of 2049955769 is 9675599402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2032206400 + 17749369 = 45080^2 + 4213^2 .

It is a cyclic number.

It is not a de Polignac number, because 2049955769 - 2²⁰ = 2048907193 is a prime.

It is a super-2 number, since 2×2049955769² = 8404637309712762722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2049955729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1024977884 + 1024977885.

It is an arithmetic number, because the mean of its divisors is an integer number (1024977885).

Almost surely, 2^2049955769 is an apocalyptic number.

It is an amenable number.

2049955769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049955769 is an equidigital number, since it uses as much as digits as its factorization.

2049955769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6123600, while the sum is 56.

The square root of 2049955769 is about 45276.4372383694. The cubic root of 2049955769 is about 1270.3249564227.

The spelling of 2049955769 in words is "two billion, forty-nine million, nine hundred fifty-five thousand, seven hundred sixty-nine".